Pelludiciar

Pelludiciar, or Sol 3b, is the third planet in the Sol system, sharing it's orbit with Earth.

Features
Pelludiciar is an Earth-like planet, and coincidentally, the planet shares its orbit with Earth, orbiting on the exact opposite side of the sun. This makes it imposible to detect it, especially through the influence of the Firstborn, which keep the planet's orbit stable. Pelludiciar is a warm planet with a thicker atmosphere than Earth's. It is geologically active and is the same size as Earth. The land here is covered in steamy rain-forests and warm oceans. There are also geysers and hot springs. Vegitation similar to palm trees thrive along the beaches, and the entire planet is a huge tropical paradise. Natives of this paradise include pachyderms known as Thorgons, semi-sapient gorilla-like Girmanins, aquatic predatorial Redmins, and the sapient Pelludicians. Many other saurian creatures similar to dinosaurs hunt in the thick jungles.

History
Pelludiciar, like the other life-supporting terrestrial worlds in the Sol system, had a devastating fate. Just as Venus would have been baked by the sun and Mars would have lost its magnetic field, Pelludiciar and Earth would have spun out of their orbits and froze. Yet an alien race known as the Firstborn shielded Venus from the heat, made Mars a magnetic field, and made a gravity ring to keep Earth and Pelludiciar in their orbits.